php7 installation. Dose not work this script!

install-php-7.0.6.sh

#!/bin/bash

set -x
set -e
if [ ! -x "`which php`" ]; then

  if [ ! -e ./php-7.0.6 ]; then
    wget -O "php-7.0.6.tar.gz" http://jp2.php.net/get/php-7.0.6.tar.gz/from/this/mirror && \
    tar xfvz ./php-7.0.6.tar.gz
  fi
  cd php-7.0.6

  SOURCE_DIR="echo $(cd $(dirname $0);pwd)"
  BUILD_DIR=${SOURCE_DIR}/build

  ./configure \
    --enable-mbstring \
    --enable-zip \
    --enable-bcmath \
    --enable-pcntl \
    --enable-ftp \
    --enable-exif \
    --enable-calendar \
    --enable-sysvmsg \
    --enable-sysvsem \
    --enable-sysvshm \
    --enable-wddx \
    --with-curl \
    --with-mcrypt \
    --with-iconv \
    --with-gmp \
    --with-pspell \
    --with-gd \
    --with-jpeg-dir=/usr \
    --with-png-dir=/usr \
    --with-zlib-dir=/usr \
    --with-xpm-dir=/usr \
    --with-freetype-dir=/usr \
    --enable-gd-native-ttf \
    --enable-gd-jis-conv \
    --with-openssl \
    --with-pdo-mysql=/usr \
    --with-gettext=/usr \
    --with-zlib=/usr \
    --with-bz2=/usr \
    --with-recode=/usr \
    --with-mysqli=/usr/bin/mysql_config \
    --with-apxs2=/usr/bin/apxs2 \
    --with-tsrm-pthreads

  make test && \
  make && \
  sudo make install && \
  cd .. && \
  sudo rm -fr ./php-7.0.6 ./php-7.0.6.tar.gz

fi